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Winnebago County, Illinois

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Winnebago County, Illinois
RockfordCityHall — CC BY-SA 3.0, Jake Mackenzie (Transfinite) · source

About Winnebago County

Winnebago County is a county located in the U.S. state of Illinois. According to the 2020 census, it had a population of 285,350 making it the seventh most populous county in Illinois behind Cook County and its five surrounding collar counties. Its county seat is Rockford. Winnebago County is the central county of the Rockford metropolitan area.

Description adapted from Wikipedia, CC BY-SA 4.0.

Winnebago County at a glance

County seat
Rockford
Population
285,350 (2020)
Land area
519 sq mi
Founded
1836

Largest communities in Winnebago County

  1. Rockford Township170,478
  2. Rockford County seat148,655
  3. Harlem Township39,247
  4. Loves Park23,397
  5. Machesney Park22,950

History of Winnebago County

Winnebago County was formed on January 16, 1836, out of Jo Daviess and LaSalle counties. It was named for the Ho-Chunk or Winnebago tribe of Native Americans. At the time the county was founded its inhabitants consisted almost entirely of New Englanders and New England transplants from upstate New York. These were "Yankee" settlers, meaning they were descended from the English Puritans who settled New England during the early 1600s. They made up virtually all of Winnebago County's inhabitants during the first several decades of its history. In this regard the county was similar to most of the northern portion of the state of Illinois, and almost all of the neighboring state of Wisconsin. After the conclusion of the Black Hawk War there was an additional surge of immigration from New England.

Adapted from Wikipedia, CC BY-SA 4.0.

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Part of Illinois Voter Check

This is the Winnebago County page of Illinois Voter Check, a project of True the Vote, pointing Illinois voters at the official tools that already exist — and at Scan Check Protect to verify your registration.

Where anything here differs from what Winnebago County or the Illinois State Board of Elections publishes, they are right and this page is not.